Hach SP-510 Instrument Manual

Cat. No. 54100-18

SP-510™

HARDNESS MONITOR

INSTRUMENT MANUAL

CAT. NO. 54100-18

SP-510™

HARDNESS MONITOR

INSTRUMENT MANUAL

Rev. 1, 10/99

2

TRADEMARKS OF HACH COMPANY

3

TABLE OF CONTENTS

CERTIFICATION............................................................................................................................................................ 5

SAFETY PRECAUTIONS.............................................................................................................................................. 7

SPECIFICATIONS.......................................................................................................................................................... 9

SECTION 1 GENERAL INFORMATION......................................................................................................... 13

1.1 Instrument Description............................................................................................................................................. 13

1.2 Principle of Operation.............................................................................................................................................. 14

INSTALLATION....................................................................................................................................................... 15

SECTION 2 INSTALLATION............................................................................................................................... 17

2.1 Instrument Environmental Considerations............................................................................................................... 17

2.2 Unpacking the Instrument........................................................................................................................................ 17

2.3 Wall Mounting the Instrument................................................................................................................................. 18

2.4 Plumbing Connections ............................................................................................................................................. 21

2.5 Installing the Sample Line........................................................................................................................................ 22

2.6 Optional Air Purge................................................................................................................................................... 23

2.7 Sample Conditioning................................................................................................................................................ 23

2.7.1 Assembling the Sample Conditioning Kit...................................................................................................... 23

2.7.2 Using the Sample Conditioning Kit................................................................................................................ 24

2.8 Electrical Connections.............................................................................................................................................. 26

2.8.1 Power Connections......................................................................................................................................... 26

2.8.2 Wiring the Instrument..................................................................................................................................... 28

2.8.3 Voltage Selection for Alternate Voltage Operation........................................................................................ 28

2.8.4 Alarm Connections......................................................................................................................................... 29

2.9 Installing Pump/Valve Pinch Plate........................................................................................................................... 31

START UP................................................................................................................................................................... 33

SECTION 3 STARTING THE INSTRUMENT................................................................................................ 35

3.1 Introduction.............................................................................................................................................................. 35

3.2 Installing the Reagents............................................................................................................................................. 35

3.2.1 Priming the Reagents (optional)..................................................................................................................... 36

3.3 Installing the Stir Bar ............................................................................................................................................... 36

3.4 Supplying Sample .................................................................................................................................................... 37

3.5 Supplying Power...................................................................................................................................................... 37

3.6 Two-point Standardization....................................................................................................................................... 38

4

TABLE OF CONTENTS, continued

SECTION 4 OPERATION ...................................................................................................................................... 39

4.1 Instrument Operation................................................................................................................................................ 39

MAINTENANCE....................................................................................................................................................... 41

SECTION 5 MAINTENANCE............................................................................................................................... 43

5.1 Scheduled Maintenance............................................................................................................................................ 43

5.1.1 Replenishing the Reagents.............................................................................................................................. 43

5.1.2 Replacing the Pump Tubes.............................................................................................................................. 43

5.1.3 Tubing Replacement ....................................................................................................................................... 44

5.2 Unscheduled Maintenance........................................................................................................................................ 46

5.2.1 Changing Instrument Alarm Point .................................................................................................................. 46

5.2.2 Fuse Replacement .......................................................................................................................................... 46

5.2.3 Cleaning the Instrument Enclosure................................................................................................................. 47

5.2.4 Replacing the Sample Conditioning Filter...................................................................................................... 47

5.2.5 Reagent Spill Clean Up Instructions............................................................................................................... 47

SECTION 6 TROUBLESHOOTING.................................................................................................................... 49

GENERAL INFORMATION.................................................................................................................................. 51

REPLACEMENT ITEMS .............................................................................................................................................. 53

HOW TO ORDER.......................................................................................................................................................... 54

REPAIR SERVICE......................................................................................................................................................... 55

WARRANTY ................................................................................................................................................................. 56

INDEX............................................................................................................................................................................ 57

5

CERTIFICATION

Hach Company certifies this instrument was tested thoroughly, inspected, and

found to meet its published specifications when it was shipped from the factory.

The SP-510™ Hardness Monitor has been tested and is certified as indicated to

the following instrumentation standards:

Product Safety

The SP-510™ was tested for safety as follows:

UL 3101-1 (ETL Listing # H0492805390)

CSA C22.2 No. 1010.1 (ETLc Certification # H0492805390)

Certified by Hach to EN 61010-1 (IEC1010-1) per 73/23/EEC, supporting test

records by Intertek Testing Services.

Immunity

The SP-510™ Hardness Monitor was tested for EMC as follows:

EN 61326:1998 (EMC Requirements for Electrical Equipment for

Measurement, Control and Laboratory Use) per 89/336/EEC EMC:

Supporting test records by Hach Company, certified compliance by

Hach Company.

Standards include:

IEC 1000-4-2:1995 (EN 61000-4-2:1995) Electro-Static Discharge Immunity

(Criteria B)

IEC 1000-4-3:1995 (EN 61000-4-3:1996) Radiated RF Electro-Magnetic

Field Immunity (Criteria A)

IEC 1000-4-4:1995 (EN 61000-4-5:1995) Electrical Fast Transients/Burst

(Criteria B)

IEC 1000-4-5:1995 (EN 61000-4-5:1995) Surge (Criteria B)

IEC 1000-4-6:1996 (EN 61000-4-6:1996) Conducted Disturbances Induced

by RF Fields (Criteria A)

IEC 1000-4-11:1994 (EN 61000-4-11:1994) Voltage Dip/Short Interruptions

(Criteria B)

Additional Immunity Standard/s include:

ENV 50204:1996 Radiated Electro-Magnetic Field from Digital Telephones

(Criteria A)

Emissions

The SP-510™ Hardness Monitor was tested for Radio Frequency Emissions

as follows:

Per 89/336/EEC EMC: EN 61326:1998 (Electrical Equipment for measurement,

control and laboratory use-EMC requirements) Class "TBD" emission limits.

Supporting test records by Hewlett Packard, Fort Collins, Colorado Hardware Test

Center (A2LA # 0905-01) and certified compliance by Hach Company.

Standards include:

EN 61000-3-2 Harmonic Disturbances Caused by Electrical Equipment

EN 61000-3-3 Voltage Fluctuation (Flicker) Disturbances Caused by

Electrical Equipment

6

CERTIFICATION, continued

Additional Emissions Standard/s include:

EN 55011 (CISPR 11), Class "TBD" (Test date 4-21-99) emission limits

Canadian Interference-causing Equipment Regulation, IECS-003, Class A

Supporting test records by Hewlett Packard, Fort Collins, Colorado Hardware Test

Center (A2LA # 0905-01) and certified compliance by Hach Company.

This Class A digital apparatus meets all requirements of the Canadian

Interference- Causing Equipment Regulations.

Cet appareil numérique de la classe A respecte toutes les exigences du Règlement

sur le matériel brouilleur du Canada.

FCC PART 15, Class "A" Limits

Supporting test records by Hewlett Packard, Fort Collins, Colorado Hardware Test

Center (A2LA # 0905-01) and certified compliance by Hach Company.

This device complies with Part 15 of the FCC Rules. Operation is subject to the

following two conditions:

(1) this device may not cause harmful interference, and (2) this device must

accept any interference received, including interference that may cause

undesired operation.

Changes or modifications to this unit not expressly approved by the party

responsible for compliance could void the user's authority to operate the

equipment.

This equipment has been tested and found to comply with the limits for a Class A

digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to

provide reasonable protection against harmful interference when the equipment is

operated in a commercial environment. This equipment generates, uses, and can

radiate radio frequency energy and, if not installed and used in accordance with

the instruction manual, may cause harmful interference to radio communications.

Operation of this equipment in a residential area is likely to cause harmful

interference, in which case the user will be required to correct the interference at

his own expense. The following techniques of reducing the interference problems

are applied easily.

1. Disconnect the SP-510™ Harness Monitor from its power source to verify

that it is or is not the source of the interference.

2. If the SP-510™ Harness Monitor is connected into the same outlet as the

device with which it is interfering, try another outlet.

3. Move the SP-510™ Harness Monitor away from the device receiving the

interference.

4. Reposition the receiving antenna for the device receiving the interference.

5. Try combinations of the above.

7

SAFETY PRECAUTIONS

This symbol, if noted on the product, indicates the need for protective

eye wear.

Section 2.1 Instrument Environmental Considerations on page 17

Section 2.4 Plumbing Connections on page 21

Section 2.6 Optional Air Purge on page 23

Section 2.8 Electrical Connections on page 26

Section 2.8.1 Power Connections on page 26

Section 2.8.2 Wiring the Instrument on page 28

Section 2.8.3 Voltage Selection for Alternate Voltage Operation on

page 28

Section 2.8.4 Alarm Connections on page 29

SECTION 3 STARTING THE INSTRUMENT on page 35

SECTION 5 MAINTENANCE on page 43

8

SAFETY PRECAUTIONS, continued

Section 5.1 Scheduled Maintenance on page 43

Section 5.2 Unscheduled Maintenance on page 46

Section 5.2.2 Fuse Replacement on page 46

9

SPECIFICATIONS

GENERAL SPECIFICATIONS

Hard/Soft Display: Two LEDS with one indicating hard water and the second

one indicating soft water

Time Delay: A soft-to-hard water alarm transition requires two successive

readings above the trip point. A hard-to-soft water alarm clearing transition

requires one reading below the trip point.

Trip Points:

1.0, 2.0, 5.0, 10.0, 20.0, 50.0, and 100.0 mg/L hardness measured as CaCO

3

Reagents Required: Buffer and indicator for the desired trip point

Reagent Bottle Volume: 500 mL

Reagent Shelf Life: 1year

Reagent Consumption Rate: 500 mL of each reagent every two months

Sampling Rate:

New sample every 1.9 minutes ± 5% at 60 Hz; new sample every 2.3 minutes

±5%at50Hz

Controls: On/Off Switch, ALARM OFF, ZERO CAL, HARD CAL

Service Requirements:

Restandardization every 2 months. Replace pump tubes every 6 months.

Trip Point Buffer Cat. No. Indicator Cat. No.

1 mg/L 27685-49 27690-49

2 mg/L 27685-49 27691-49

5 mg/L 27685-49 27692-49

10 mg/L 27686-49 27692-49

20 mg/L 27687-49 27692-49

50 mg/L 27688-49 27692-49

100 mg/L 27689-49 27692-49

10

SPECIFICATIONS, continued

PERFORMANCE SPECIFICATIONS

Repeatability:

±10% of trip value on 1 and 2 mg/L ranges; ±4% of trip value on

remaining ranges.

ENVIRONMENTAL SPECIFICATIONS

Operating Humidity Range: 5 to 95%, noncondensing

Storage Temperature Range: -40 °C to +60 °C (-40 °F to +140 °F)

Operating Temperature Range: 5°Cto40°C(32°Fto104°F)

Influence of Temperature On Trip Point:

ELECTRICAL SPECIFICATIONS

Power Requirements: 115/230 Vac, (switch selectable inside instrument)

70 VA, 50/60 Hz, 1.25 Amp Fuse (see Section 2.8.3 on page 28).

Installation Category: II

Electrical Connection:

Two 3-wire barrier terminal blocks. Wire range 12

–18 AWG. Holes for two

1/2" conduit fittings are provided.

Hard Water Alarm Relay: SPDT relay, actuated when hard water indicator is

on. (Alarm may be disabled from front keypad.)

Contact ratings: 5 A resistive at 100-240 Vac

Nominal Alarm Point Minimum Trip Value Maximum Trip Value

1mg/L 0.75mg/L 1.25mg/L

2 mg/L 1.5 mg/L 2.5 mg/L

5mg/L 3.75mg/L 6.25mg/L

10 mg/L 7.5 mg/L 12.5 mg/L

20 mg/L 15.0 mg/L 25.0 mg/L

50 mg/L 37.5 mg/L 62.5 mg/L

100 mg/L 75.0 mg/L 125.0 mg/L

1 mg/L –0.03 mg/L/°C

2 mg/L –0.03 mg/L/°C

5 mg/L –0.06 mg/L/°C

10 mg/L –0.08 mg/L/°C

20 mg/L –0.09 mg/L/°C

50 mg/L –0.29 mg/L/°C

100 mg/L –0.60 mg/L/°C

SPECIFICATIONS, continued

11

OPTICAL SPECIFICATIONS

Light Source: Class 1 LED (Light Emitting Diode) with peak wavelength of

610 nm. Estimated 50,000 hours minimum life.

Detector: Silicon photo detector

Optical Path Length: 0.35"

MECHANICAL SPECIFICATIONS

Enclosure: Environmental Rating IP62

Dimensions: Approximately 42 x 31.5 x 18 cm (16.5 x 12.5 x 7") (refer to the

transmittal drawing for exact space requirements).

Case Construction: IP62 instrument enclosure with gasketed door

Mounting: Wall-mounted

Shipping Weight: 11.3 kg (25 lbs)

HYDRAULIC (SAMPLING) SPECIFICATIONS

Sample Flow Rate to Sample Conditioning: 50 to 500 mL/minute flow

rate required.

Inlet Pressure to Instrument: 1 to 5 psig, 1.5 psig is optimum. Exceeding 5 psig

can cause sample tubing failure.

Inlet Pressure to Sample Conditioning: 1.5psigto75psig(withthesample

tube level with the bottom of the instrument)

Inlet Fitting:

At instrument, ¼" OD polyethylene tubing with quick-disconnect fitting

Drain Fitting: Hose barb for ½" ID flexible tubing

Sample Temperature Range: 5°Cto40°C(41°Fto104°F)

Sample Conditioning: use provided sample conditioning

12

13

SECTION 1 GENERAL INFORMATION

1.1 Instrument Description

The Model SP-510™ Hardness Monitor is designed to monitor water softener

effluents continuously to detect hardness breakthrough due to softener exhaustion.

It enables commercial and industrial water softener operators to establish

automatic control of their systems by initiating regeneration sequences with the

instrument's alarm circuit. The Hardness Monitor is also suited for other

applications requiring the monitoring of hardness.

By selecting the appropriate hardness indicator and buffer reagents, the

monitor will alarm at 1, 2, 5, 10, 20, 50, or 100 mg/L hardness measured as

CaCO

3

. When the preselected alarm point is exceeded, the alarm relay responds,

closing the normally open contacts and opening the normally closed contacts.

These dry contacts can be used to actuate annunciators and/or initiate softener

regeneration. Control panel indicators provide “hard” or “soft” sample status.

The SP-510™ Hardness Monitor enclosure is environmentally rated for IP62 per

IEC 529. The enclosure is dust-tight, and drip-resistant but is not designed for

outdoor use.

The instrument is designed so electronic components are isolated from the

hydraulic components. Windows allow the operator to observe the display

indicators and reagent supply without opening the instrument enclosure.

Figure 1 Model SP-510™ Hardness Monitor

14

SECTION 1, continued

1.2 Principle of Operation

The Hardness Monitor uses a buffered colorimetric hardness indicator solution

that is mixed with the water sample as it flows through the instrument. While in

the colorimeter sample cell, light is transmitted through the solution to a detector,

which provides the colorimetric measurement.

Note: The Class 1 Light Emitting

diode(LED) used as thelightsource

for the photometric measurement

does not present any potential for

eye damage.

Indicator solutions are formulated to provide 50% transmittance (%T) to the

detector at their nominal alarm point values. Below 50%, the color of

sample/reagent mixture is blue. As hardness increases, the color becomes red.

Because the light source for the colorimetric measurement is an orange light-

emitting diode, a blue solution blocks light to the detector while a red solution

allows light to be transmitted unattenuated through the measurement cell to the

detector. Maximum light transmittance through the cell occurs when all of the

indicating reagent available has reacted with sample hardness and any further

increasing levels of hardness have no effect on solution color.

A linear, peristaltic pump/valve controls the flow of incoming sample and injects

metered volumes of the buffer and indicator reagents on a sequenced cycle. The

pump/valve uses a motor-driven cam to operate pinch blocks that squeeze special

thick-walled tubing against a fixed plate, the sequence operates as follows:

1. The sample inlet line opens and remains open to allow sufficient sample

flow to purge the inlet line and measure cell. While the inlet sample is

flowing, the reagent inlet valve and pinch blocks are opened, filling the tubing

with reagent.

2. The sample inlet line is then pinched shut, leaving a fresh sample in the

measuring cell. The cell volume is controlled by an overflow weir.

3. Reagent inlet valve block is then closed.

4. Reagent outlet valves open and the pinch block squeezes the tubing, forcing

reagent into the measuring cell. A magnetic stirrer mounted beneath the

measuring cell mixes sample and reagent in the cell. Sufficient time is allowed

for sample and reagents to react.

5. An optical interrupter circuit on the drive motor shaft signals the monitor

electronics to take a measurement.

This cycle is repeated approximately every 2 minutes.

15

DANGER

Some of the tasks in this section of the manual have safety issues associated with them. Because the potential for injury to

individuals and equipment exists when these safety issues are not addressed, Hach Company strongly recommends that

qualified personnel conduct the installation, and that all installation personnel review the associated instructions carefully.

PELIGRO

Algunas de las tareas comprendidas en esta sección del manual pueden ocasionar daños a las personas y al material si no

observan la medidas de suguridad. Hach Company recomienda encarecidamente que el material sea instalado por un personal

cualificado y que el personal encargado de la instalación lea atentamente estas instrucciones.

PERIGO

A execução de algumas tarefas previstas nesta secçao do manual pode causar ferimentos às pessoas ou estragos no

equipamento se não forem observadas precauções de suranca. A Hach Company recomenda vivamente que o equipmento seja

instalado por pessoal qualificado e que todas as pessoas afectadas à sua instalação leiam atentamente estas instruções.

DANGER

Certaines tâches dans ce chapitre du mode d'emploi peuvent causer des blessures aux personnes et endommager le matériel si

les consignes de sécurité ne sont pas suivies. Hach Company recommande vivement que l'installation soit faite par du personnel

qualifié et que toutes les personnes effectuant l'installation lisent attentivement ces instructions.

GEFAHR

Einige der in diesem Abschnitt der Betriebsanleitung beschriebenen Arbeiten können bei Nichtbeachtung der

Sicherheitsvorschriften zu Verletzungen von Personen oder Schäden am Gerät führen. Es wird dringend empfohlen, die

Installation ausschließlich von qualifiziertem Personal duchführen zu lassen; mit der Installation befaßte Personen sollten

diese Anweisungen aufmerksam lesen.

INSTALLATION

16

17

SECTION 2 INSTALLATION

2.1 Instrument Environmental Considerations

The instrument enclosure has been tested to IEC 529 IP 62 standards and is

designed for general-duty, indoor installation. Ambient temperatures may fall

within the range of 5° to 40 °C (18° to 104 °F) but they should be nearly constant.

Do not mount the instrument in direct sunlight; shield from dripping water.

2.2 Unpacking the Instrument

Remove the Hardness Monitor from its shipping carton and inspect it for any

damage that may have occurred during shipment. Verify that the Installation Kit,

Cat. No. 55164-00, and Maintenance Kit, Cat. No. 55165-00, are included in

addition to reagents.

If damage is evident or the shipment is incomplete, please contact the Customer

Service Department, Hach Company, Loveland, Colorado for instructions. The

toll-free number is 800-227-4224. Contents of the Installation and Maintenance

kits are listed in Replacement Parts.

18

SECTION 2, continued

2.3 Wall Mounting the Instrument

The instrument case is designed for wall mounting. Refer to Figure 2, Figure 3,and

Figure 4 for dimensions and other installation information. Use ¼-inch screws for

mounting. Mount the instrument as close to the sampling point as practical to ensure

complete purging of the sample line each cycle. Leave adequate clearance at the

sides and bottom of the instrument case for plumbing and wiring connections.

Figure 2 SP-510 Instrument Dimensions (1 of 3)

SECTION 2, continued

19

Figure 3 SP-510 Instrument Dimensions (2 of 3)

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Hach SP-510 Instrument Manual

Hach SP-510 Instrument Manual

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